<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<head>
<script>
function boom()
{
  document.getElementById("div").style.display = "none";
  document.documentElement.style.display = "-moz-inline-grid";
}
</script>
</head>
<body onload="boom();">

<xul:treeitem style="display: -moz-inline-grid;"><xul:hbox><span><div id="div"></div></span></xul:hbox></xul:treeitem>

</body>
</html>
